mapper: add mapper_get_music_directory()

Shortcut for map_directory_fs(db_get_root()).

src/inotify_update.c

@@ -266,18 +266,19 @@ mpd_inotify_callback(int wd, unsigned mask,
 	    (mask & IN_ISDIR) != 0) {
 		/* a sub directory was changed: register those in
 		   inotify */
-		char *root = map_directory_fs(db_get_root());
-		char *path_fs;
+		const char *root = mapper_get_music_directory();
+		const char *path_fs;
+		char *allocated = NULL;
 
-		if (uri_fs != NULL) {
-			path_fs = g_strconcat(root, "/", uri_fs, NULL);
-			g_free(root);
-		} else
+		if (uri_fs != NULL)
+			path_fs = allocated =
+				g_strconcat(root, "/", uri_fs, NULL);
+		else
 			path_fs = root;
 
 		recursive_watch_subdirectories(directory, path_fs,
 					       watch_directory_depth(directory));
-		g_free(path_fs);
+		g_free(allocated);
 	}
 
 	if ((mask & (IN_CLOSE_WRITE|IN_MOVE|IN_DELETE)) != 0 ||
@@ -303,21 +304,13 @@ mpd_inotify_callback(int wd, unsigned mask,
 void
 mpd_inotify_init(unsigned max_depth)
 {
-	struct directory *root;
-	char *path;
 	GError *error = NULL;
 
 	g_debug("initializing inotify");
 
-	root = db_get_root();
-	if (root == NULL) {
-		g_debug("no music directory configured");
-		return;
-	}
-
-	path = map_directory_fs(root);
+	const char *path = mapper_get_music_directory();
 	if (path == NULL) {
-		g_warning("mapper has failed");
+		g_debug("no music directory configured");
 		return;
 	}
 
@@ -326,13 +319,12 @@ mpd_inotify_init(unsigned max_depth)
 	if (inotify_source == NULL) {
 		g_warning("%s", error->message);
 		g_error_free(error);
-		g_free(path);
 		return;
 	}
 
 	inotify_max_depth = max_depth;
 
-	inotify_root.name = path;
+	inotify_root.name = g_strdup(path);
 	inotify_root.descriptor = mpd_inotify_source_add(inotify_source, path,
 							 IN_MASK, &error);
 	if (inotify_root.descriptor < 0) {
@@ -340,7 +332,6 @@ mpd_inotify_init(unsigned max_depth)
 		g_error_free(error);
 		mpd_inotify_source_free(inotify_source);
 		inotify_source = NULL;
-		g_free(path);
 		return;
 	}
 

src/mapper.c

@@ -117,10 +117,10 @@ void mapper_finish(void)
 	g_free(playlist_dir);
 }
 
-bool
-mapper_has_music_directory(void)
+const char *
+mapper_get_music_directory(void)
 {
-	return music_dir != NULL;
+	return music_dir;
 }
 
 const char *

src/mapper.h

@@ -36,12 +36,19 @@ void mapper_init(const char *_music_dir, const char *_playlist_dir);
 
 void mapper_finish(void);
 
+G_GNUC_CONST
+const char *
+mapper_get_music_directory(void);
+
 /**
  * Returns true if a music directory was configured.
  */
 G_GNUC_CONST
-bool
-mapper_has_music_directory(void);
+static inline bool
+mapper_has_music_directory(void)
+{
+	return mapper_get_music_directory() != NULL;
+}
 
 /**
  * If the specified absolute path points inside the music directory,

src/playlist_song.c

@@ -115,7 +115,7 @@ playlist_check_translate_song(struct song *song, const char *base_uri,
 
 	if (g_path_is_absolute(uri)) {
 		/* XXX fs_charset vs utf8? */
-		char *prefix = map_directory_fs(db_get_root());
+		const char *prefix = mapper_get_music_directory();
 
 		if (prefix != NULL && g_str_has_prefix(uri, prefix) &&
 		    uri[strlen(prefix)] == '/')
@@ -123,13 +123,11 @@ playlist_check_translate_song(struct song *song, const char *base_uri,
 		else if (!secure) {
 			/* local files must be relative to the music
 			   directory when "secure" is enabled */
-			g_free(prefix);
 			song_free(song);
 			return NULL;
 		}
 
 		base_uri = NULL;
-		g_free(prefix);
 	}
 
 	if (base_uri != NULL)